Slang for a fight on Facebook. Comes from the slang "Throw the ones" (Slang for two people to square off and fight). The 'Face Ones' is basically an arguement in which neither side will actually get hurt, it's more or less just people having an online fight.

--------------------Conversation in a Status-----------------------
Luis: That is a lovely vase you have there.
Richard: lol Luis you're such a fag, looking at vases and shit
Luis: What nigga!? I'll fight you!
Richard: Yeah right you little punk ass bitch!
Cody: Oh Jeez they're throwing the FACE ONES again.